You will architect the core intelligence behind Karumi’s autonomous demo agents, bridging voice AI, browser automation, and LLMs. By designing real-time systems that listen, speak, and interact with web applications, you’ll directly impact how companies engage prospects. This role focuses on shipping production-grade agentic workflows that solve complex multimodal challenges.
AI/ML Applied Engineer at Karumi
Karumi is building the "Waymo of product demos"—AI agents that join live video calls to navigate software and engage prospects in real-time. As an early AI/ML Applied Engineer at this YC F25 startup, you'll work directly with founders from IBM Research and StackAI to own the core intelligence layer. With a $120k-$170k salary and up to 1% equity, this is a rare chance to shape the future of B2B sales using cutting-edge voice AI, browser automation, and LLM orchestration in a high-growth, shipping-focused environment.
Want to apply for this role?
Jack finds you jobs at companies like Karumi. Talk to Jack to get considered for roles that fit what you're great at.
Location
San Francisco, United States
Compensation
$120k-$170k + Equity
Company
Karumi
Role overview
Karumi is an AI-powered demo platform that provides autonomous product demonstration services for SaaS companies. Its agent joins live video calls or works through video/chat to deliver personalized, interactive product demos, answer questions, navigate the product in a browser, qualify leads, and support sales, onboarding, and customer education workflows 24/7 in multiple languages.
What you will do
- Develop and optimize low-latency voice AI pipelines using STT/TTS models like Whisper and ElevenLabs for natural, real-time conversation.
- Design autonomous browser agents using Playwright and computer vision to navigate, understand, and interact with diverse web application interfaces.
- Engineer sophisticated LLM workflows and evaluation frameworks to ensure consistent, intelligent agent behavior across complex, multi-step sales demonstrations.
Who this is a fit for
- 6+ years of engineering experience with a proven track record of shipping production-grade AI features or autonomous agents at early-stage startups.
- Deep expertise in Python, async programming, and modern AI stacks including OpenAI/Anthropic models, agent frameworks, and retrieval systems.
- Hands-on experience with browser automation tools like Playwright or Selenium and real-time audio streaming architectures for voice-based interactions.
Why this role is remarkable
- Join a YC F25 startup led by repeat founders from IBM Research and StackAI, already delivering thousands of demos to paying B2B customers.
- Work on a unique “Waymo-style” AI challenge involving real-time voice synthesis, computer vision for UI navigation, and complex LLM orchestration.
- Enjoy significant ownership and up to 1% equity as one of the first ten employees in a high-velocity engineering culture.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Karumi wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.